18-6=4a-4(a+3)

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Solution for 18-6=4a-4(a+3) equation: 


Simplifying
18 + -6 = 4a + -4(a + 3)

Combine like terms: 18 + -6 = 12
12 = 4a + -4(a + 3)

Reorder the terms:
12 = 4a + -4(3 + a)
12 = 4a + (3 * -4 + a * -4)
12 = 4a + (-12 + -4a)

Reorder the terms:
12 = -12 + 4a + -4a

Combine like terms: 4a + -4a = 0
12 = -12 + 0
12 = -12

Solving
12 = -12

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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